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15 Cards in this Set
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 Back
Define: Relation

A set of ordered pairs


Define: Function

A set of ordered pairs in which each element of the domain has only ONE element associated with it in the range


Define: Onto

All elements in the range have a corresponding element in the domain


Onetoone

Every element in the domain is mapped to a distinct element in the range


Define: Dependent Variable

A variable whose values always depend on the value(s) of other variable(s)


Define: Independent Variable

A variable whose value other variables depend upon


Define: Vertical Line Test

If a vertical line intersects the relation's graph in more than one place, then the relation is NOT a function


Define: Domain

The set of all possible xvalues


Define: Range

The set of all possible yvalues


Define: Composition of two functions

The function that maps x onto g(f(x)) and whose domain is the set of all values in the domain of f for which f(x) is in the domain of g


Define: Natural Numbers

The set of numbers that only includes positive numbers


Define: Whole Numbers

The set of numbers that includes zero and all positive numbers


Define: Integers

The set of all negative numbers, zero, and positive numbers


Define: Rational Numbers

The set of numbers that can be written as a ratio (fraction)


Define: Real Numbers

The set of numbers that can be written as a decimal (all numbers)
